Hey guys,

I recently picked up a 2004 A4 1.8T and my A/C doesn't blow cold when I switch it on. I thought it was out of freon so I tested the pressure first and the pressure guage didn't move at all when I hooked it up to the low pressure line. I read around that there may be a bad switch but I can't find a definitive answer. Any help would be much appreciated.

- q_m

 

Anyone?

 

have u had the coolant warning come on?

 

No, no warning lights at all. It feels almost as if the compressor isn't coming on when I turn on the A/C from the climate control cluster.

 

anyone else?

 

its might be ur engine coolant temp sensor.

 

If that's the case, wouldn't the temp gauge on the dash be going crazy?

 

hmm yea i suppose ur right. Have u scanned the car at autozone or with a vagcom to see if anything comes up in the dtc?

 

could be the high pressure switch that may have went bad too but like what pa4ul said go run the codes